Stovepipe fastenek



mac. 7, 1%48. c pwgc 2,455,406

STOVE vPIPE FASTENER' Filed Oct. 18, 1945 E.L.CHADWICK. INVENTOR.

ATTORNE Y3 Patented Dec. 7, 1948 STATES ZASSAdt ATENT OFFICE The invention relates to a fastener for stove pipes of the type which can be inserted through the pipe and extended to pierce the pipe and anchor it in the flue thimble and supporting structure.

Considerable difliculty is encountered in maintaining both a straight and an elbow type of stove pipe in fixed position in the flue thimble, and in the chimney structure.

It is one of the objects of the present invention 1 to provide an extensible fastener for stove pipes.

Another object of the invention is to provide an extensible fastener which can be utilized to pierce the pipe and anchor itself in the flue thimble and the chimney structure.

Another object of the invention is to provide a pair of opposed pointed rods which will be held against rotation while being extended to pierce a stove pipe and flue thimble.

Still another object of the invention is to provide an anchor device for stove pipe fasteners which can be utilized to pierce the pipe and maintain the pipe in fast position.

Other and further objects of the invention will be readily apparent when the following description is considered in connection with the accompanying drawings wherein:

Fig. 1 is a transverse sectional view illustrating a stove pipe which is anchored in the flue thimble and chimney structure;

Fig. 2 is an end view taken on the line 2-2 of Fig. 1;

Fig. 3 is a perspective view of one of the fasteners.

In Fig. 1 the chimney 2 has the opening 3 therein into which the flue thimble 4 has been inserted. This thimble 4 has the usual circular extension 5 which projects into the chimney and the flange 6 which overlies the outside face of the chimney and presents a decorative effect.

The pipe H] is to be fastened in the flue thirnble 4 and in the opening 3 in the chimney. While this pipe has been illustrated as an elbow, it may be a straight piece of pipe. Regardless of whether the pipe is straight or curved, it will embody the end portion l2 which is of a diameter to fit within the extension 5 of the flue thimble 4. The pipe will be thus inserted and then the fastener 20 will be placed in position. This fastener is best shown in Fig. 3 as including a turn buckle 2! having right and left hand threaded portions 22 at the opposite ends thereof and the usual opening 23 in the center. Threaded into the portions 22 are the opposite rods 24 which are respectively right and left hand threaded to fit 2 Claims. (Cl. 126318) the corresponding openings in the turn buckle. These rods are provided with a pointed end 25 and, as best seen in Fig. 2, a flattened area or portion 26 which is non-circular.

A clip 30 is shown as having been slipped over the rod by having the non-circular opening 3| and the circular opening 32 passed over the end of the rod. The non-circular opening prevents rotation of the rod relative to the clip.

The clip is in the form of a strip of metal which has a pointed end 33 which is reversely bent upon itself to form the end 34 of the clip which is in turn bent to form the one side 35, a further bend forms the inner side 36 and the end of the clip is formed by the end of the strip at 31. In this manner a rectangular clip is formed which can be passed over the end of the pipe as seen in Fig. 1.

The fastener may be installed by retracting the rods as shown in Fig. 3 and moving the fastener up through the pipe l0 so that the pointed portion 33 of the clips can be moved over the end of the pipe so as to secure the fastener as regards the pipe. The body or turn buckle 2i will then be rotated so as to cause the rods to move radially outward. The point 25 will first pierce the pipe, and continued rotation of the turn buckle will cause it to pierce the extension 5 of the thimble. If rotation of the turn buckle is continued the point will, of course, move into the body or structure of the chimney 2. The clips hold the rods against rotation and in the position of Fig. 1, boththe fastener and the pipe are securely anchored into position.

Another method would be to connect the clips to the pipe and extend the rods by turning the turn buckle so that the rods engaged the pipe or possibly pricked into the metal. Then the pipe would be inserted into the flue thimble and the rods further extended to secure the pipe in position. A safety factor is involved in the use of the fastener because there is no danger of the pipe falling out or being pulled from position.

Broadly the invention contemplates a pipe fastener which can be readily inserted in position without previously piercing the pipe, and which can be applied to any pipe structure so as to anchor both the pipe and the flue thimble in the chimney.

What is claimed is:

1. A fastener for stove pipes and flue thimbles including a turn buckle having right and left threads, a rod threaded to each end of said turn buckle, a point on each rod, said rod having a flat non-circular portion adjacent said point, and means to connect the pipe end and the flat non-circular portion of each rod to hold said rods against turning as said turn buckle is rotated to extend the rods to pierce the pipe and thimble, said means comprising a clip to fit over the pipe end, and having a bent strip extending radially inwardly therefrom and said :bent strip which is rebent into a rectangular form having openings in the sides thereof through which said rod extends, one of said openings being noncircular and shaped to receive and limit the turning movement of said flat non-circular portion of said rod.

2. A fastener for securing a stove pipe and-flue thimble comprising, a pair of right and, left threaded rods, a turn buckle therefor to extend and retract said rods, a pointed non-circular portion on each rod, means non-rotatably disposed about each non-circular portion to engage the pipe end, comprising a. rebent clip having a portion to extend over the end of the pipe whereby rotation of said turn buckle extends the rods through said clips to pierce the pipe and thimble.

EARL L. CHADWICK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

